The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2018
Filed:
Aug. 07, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Takeshi Sakimura, Tokyo, JP;
Yuhi Kono, Tokyo, JP;
Kohei Sakai, Tokyo, JP;
Yukari Takada, Tokyo, JP;
Yojiro Watanabe, Tokyo, JP;
Fumio Shoda, Tokyo, JP;
Takayuki Yanagisawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
There are provided: a planar waveguide in which claddings () and () each having a smaller refractive index than a laser medium for absorbing pump light () are bonded to an upper surface () and a lower surface () of a core () which is formed from the laser medium; pump light generation sources () and () for emitting pump light () to side surfaces () and () of the core (); and laser light high reflection films () and () formed on side surfaces () and () of the core (). Each of side surfaces () and () of the cladding () corresponding to the side surfaces () and () of the core () has a ridge structure () in which a part thereof is recessed.